Question

它会产生错误，我无法理解脚本的错误。每个建议都会有所帮助thnx

CREATE TABLE ar_abonent
(
    ar_nr_klienti_primary_key int,
    emri varchar(25),
    mbiemri varchar(25)
);

create table ar_celular
(
    NR_CEL INT (12),
    ar_nr_klienti FOREIGN Key REFERENCES ar_abonent (ar_nr_klienti),int,
    identifikues boolean,
    data_aktivizimit date,
    marka varchar(25)
    constraint chk_celular check (NR_CEL IN ('35566%','35567%','35568%','35569%' AND IDENTIFIKUES='TRUE')
);

Answer 1

CREATE TABLE ar_abonent
(
    ar_nr_klienti int NOT NULL primary key ,  --<-- This column needs to be a primary key
    emri varchar(25),
    mbiemri varchar(25)
);

create table ar_celular
(
    NR_CEL INT ,
    ar_nr_klienti int FOREIGN Key REFERENCES ar_abonent (ar_nr_klienti) ,
    identifikues bit,
    data_aktivizimit date,
    marka varchar(25),
    constraint chk_celular check (NR_CEL IN ('35566%','35567%','35568%','35569%') AND IDENTIFIKUES= 1)
);

Answer 2

我尝试使用SQL Fiddle（设置为Oracle 11G R2）进行纠正，因为我没有任何Oracle服务器。这就是它应该如何运行而没有问题：

CREATE TABLE ar_abonent
(
    ar_nr_klienti int NOT NULL PRIMARY KEY ,
    emri VARCHAR2(25),
    mbiemri VARCHAR2(25)
);

CREATE TABLE ar_celular
(
  NR_CEL int,
  ar_nr_klienti int,
  identifikues number(1),
  data_aktivizimit date,
  marka VARCHAR2(25),
  CONSTRAINT fk_column FOREIGN KEY (ar_nr_klienti) REFERENCES ar_abonent  (ar_nr_klienti),
  CONSTRAINT chk_celular CHECK (NR_CEL IN ('35566%','35567%','35568%','35569%') AND IDENTIFIKUES= 1)
);

Sample SQL Fiddle

结果证明Oracle没有BOOLEAN类型（在表级别，虽然它确实存在于PL / SQL中），并且VARCHAR2可能比VARCHAR更受欢迎（除非空值是一个问题）。

创建表上的Sql架构错误

2 个答案: